# Basics: Standardization and the Z score

Many students have a difficult time understanding standardization when starting out in learning statistics. Common questions often include:

• What does standardized mean?
• How do you standardize a score?
• Why should I give a damn?

The answers are fairly straightforward. Here’s a rundown for your statistical woes.

# Intro Topics: A Regression Primer

Welcome to another stupidly-long, but hopefully informative instructional on introductory statistical concepts. Today we tackle regression analysis.  Use the menu links below to jump around if you need/want to get a quick bit of info on any topic:

# Advanced topics: Plotting Better Interactions using the Johnson-Neyman Technique in Mplus

Today’s tutorial involves picking up a useful new weapon for your data analytic arsenal; one that I’ve used quite a bit over the past year of my graduate training. We’re going to look at a novel way of estimating & graphing interactions in the context of multiple regression (one that even extends to structural equation models), using my increasingly go-to program – Mplus. Note that the tips below have been tested in Mplus versions 6 and 7 effectively. Using these procedures in any earlier version is a total crap shoot — meaning I haven’t verified whether or not they work in version 5 or older — so bear that in mind.

# Five essential contemporary[ish] reads for emerging social psychologists.

Every field has its landmark papers. You know – the real game changers. In our field, these are often synonymous with those papers that make their way inexorably into almost every single social psychology lecture across the globe (e.g., Milgram, 1963). The papers I’ve listed here are perhaps not quite in that league [yet!]. However, they are papers that I’ve come across in my travels through grad school, to which I’ve found myself returning again and again. Continue reading

# Mplus Coefficient Cruncher (v 1.4)

Back again with a new Excel tool. This one, which I’ve titled the “Coefficient Cruncher” is a recent development that I’ve been using to write up various sets of results, and it has greatly accelerated my output rate.  One of the most tedious things about writing up results is… well, writing up results. This helps.

The Coefficient Cruncher takes a set of model results and regurgitates the information in two formats. The first format is your basic in-text statistical report, in the style:
(B=[###], SE = [###], p < [.###]).
The second format is a row-mapped table of your results in standard APA style, which you can then edit as necesary. It has made putting together tables of coefficients and talking about findings from Mplus much much much much much much easier and faster.
Notes: The Coefficient Cruncher will report any and all model results in the “B, SE, t, p” fashion (in accordance with Mplus output styling), so be sure to change anything in your output that isn’t actually a B estimate (e.g., the correlations generated in standardized  `WITH` statement outputs).